The problem with optics on handguns has always been about what powers it. Battery-operated optics are a failure waiting to happen. But fiber optics-driven tools are a reliable way to multiply the effectiveness of your weapon. The RMR optic with 7 MOA dot used by Abner Miranda in this video relies on fiber optics in the day and a vial of gaseous tritium at night to provide consistent, reliable sighting whenever you need it. Enjoy this video demonstration of a drill using this setup with a Glock to stop a bad guy's behavior effectively.